London's Masterpiece Art Fair Unviels Puzzling Piece

Dubbed "Puzzle Portrait" and painted by legendary pop artist Roy Lichtenstein, a very curious panting featured in London's Masterpiece Art Fair. Just one of an assortment of oddities and cultural artifacts, the painting dates back to 1978 and will be a hotly contested item when it hits auction.

A painting by pop artist Roy Lichtenstein, which has not been seen in public for more than 30 years, and a massive pearl once owned by Mary Tudor have been unveiled as the highlights of London's Masterpiece art fair.

The artwork, "Puzzle Portrait," was created by Lichtenstein (1923-1997) in 1978, before being sold directly to its current owner, who kept it out of the public eye for decades.

The super-sized pearl, which weighs 64.5 carats (258.12 grains), once belonged to England's Mary I (1516-1558). The monarch was painted wearing it in several portraits, now in the Prado in Madrid and the National Portrait Gallery in London.